Taw qhia
Ethyl Valerateyog ib qho ester tsim los ntawm valeric (pentanoic) acid thiab ethanol. Nws yog ib qho tshwm sim tsis zoo nyob rau hauv ntau yam txiv hmab txiv ntoo thiab fermented khoom, xws li txiv apples, strawberries, guava, melon, wine, thiab rum, uas underpins nws tus nqi hauv kev tsim cov qhabnias ntuj tsim.
Tshaj li nws lub luag haujlwm ib txwm muaj hauv kev siv lub siab xav, kev tshawb fawb tsis ntev los no tau hais txog nws lub peev xwm hauv kev noj qab haus huv chemistry. Raws li valeric biofuel, Ethyl Valerate nthuav tawm cov khoom siv hluav taws xob zoo, ua rau nws ua tus neeg sib tw ua cov roj av ntxiv lossis lwm yam rau lub txim hluav taws xob - ignition engines.
Biochemical & Physical Parameters
| Parameter | Tus nqi / Nqe lus piav qhia | Siv / Ceebtoom |
|---|---|---|
| Boiling Point | 144 - 145.9 degree | - |
| Melting Point | -91 rau -90 degree | - |
| Qhov ntom | 0.875 - 0.882 g/cm³ ntawm 20 degree | - |
| Refractive Index (n20/D) | 1.399 - 1.401 | - |
| Flash Point | 38 - 38.9℃(kaw khob) | Muab cais ua kua ua kua (GHS02). |
| Dej Solubility | me ntsis soluble (~ 0.9 g / L ntawm 20 degree). Miscible nrog ethanol thiab feem ntau cov kuab tshuaj organic. | - |
| Log KOW (Octanol{0}}Dej faib Coeff.) | 2.26 - 2.34 | Qhia txog lipophilicity nruab nrab. |
| Vapor Siab | ~ 3.48 hli Hg ntawm 20 degree | - |
| Functional Group | Ester (-COO-) | Txhais nws cov tshuaj reactivity thiab aroma. |
| Qauv | CH₃(CH₂)₃COCH₂CH₃ | Ib tsib-carbon valerate saw txuas rau ob -carbon ethanol pawg. |
| Kev cia khoom | Khaws rau hauv ib lub thawv kaw nruj nreem nyob rau hauv ibtxias, qhuav, zoo - qhov cuadeb ntawm tshav kub, sparks, thiab qhib nplaim taws. Khaws kom deb ntawm cov muaj zog oxidizers thiab acids. | Khaws rau ntawm chav tsev kub lossis qis dua. |
Mechanism ntawm Action
Ethyl Valerate ua haujlwm los ntawm cov txheej txheem sib txawv nyob ntawm nws daim ntawv thov:
- Hauv Flavors & Fragrances: Lub ntsiab mechanism yogolfactory kev xav. Nws cov volatile molecules cuam tshuam nrog olfactory receptors nyob rau hauv lub qhov ntswg, ua rau ib tug sensory teeb liab txhais raws li qab zib, fruity, txiv apples -zoo li ntxhiab. Nws tshwm sim nyob rau hauv tej yam khoom noj xws li txiv apples thiab strawberries ua rau nws tseem ceeb heev rau kev tsim cov qhabnias, ntuj tsw profiles.
- Raws li Fuel Additive: Hauv combustion chemistry, Ethyl Valerate ua ib qhooxygenated hydrocarbon roj. Nws cov qauv ester muaj cov pa oxygen hauv cov molecule, uas tuaj yeem txhawb kev ua kom tiav ntau dua piv rau cov hydrocarbons ntshiab. Kev tshawb fawb qhia tau hais tias nws decomposition thaum lub sij hawm pyrolysis thiab combustion ua raws txoj kev nyuaj uas muaj intramolecular tshem tawm thiab H-abstraction tshua, thaum kawg yielding zog thaum tsim combustion khoom.
Cov txiaj ntsig tseem ceeb thiab qhov zoo
Cov ntawv thov tseem ceeb
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Kev sib piv: Ethyl Valerate vs. Methyl Valerate
Ob leeg yog esters ntawm valeric acid siv nyob rau hauv flavors thiab ua biofuels. Qhov sib txawv tseem ceeb suav nrog:
- Molecular Structure: Ethyl Valerate muaj ib qhoethyl pawg (-CH₂CH₃), thaum Methyl Valerate muaj ibmethyl pawg (-CH₃)txuas rau ester oxygen.
- Combustion Properties: Kev tshawb fawb qhiaEthyl Valerate tuaj yeem muab cov txiaj ntsig zoo hauv cov ntsiab lus ntawm lub zog ntimpiv rau Methyl Valerate thaum siv los ua lub txim taws - ignition engine roj.
- Sensory Profile: Lawv muaj qhov sib txawv tab sis zoo li cov txiv hmab txiv ntoo tsw, nrog cov ethyl ester feem ntau suav hais tias muaj me ntsis sib npaug, cov txiv hmab txiv ntoo ua cim.
FAQ: Cov lus nug nquag nug
Q: Ethyl Valerate tsw zoo li cas?
A: Nws muaj lub zog, tus yam ntxwv ntawm cov txiv hmab txiv ntoo tsw, feem ntau piav raws li nco txog cov txiv apples, txiv pos nphuab, lossis cov ntawv sau cov txiv hmab txiv ntoo.
Q: Dab tsi yog cov qauv tshuaj thiab kev ua haujlwm ntawm Ethyl Valerate?
A: Nws cov qauv tshuaj yog CH₃(CH₂)₃COOCH₂CH₃. Cov pab pawg tseem ceeb yog pawg ester (-COO-), uas yog lub luag haujlwm rau nws cov khoom qab zib, txiv hmab txiv ntoo tsw thiab nws cov tshuaj reactivity.
Q: Puas yog Ethyl Valerate muaj kev nyab xeeb rau kev siv khoom noj thiab tshuaj pleev ib ce?
A: Thaum siv raws li kev tsim khoom zoo thiab nyob rau hauv cov txheej txheem tsim, nws suav tias yog kev nyab xeeb. Nws tau pom zoo ua tus neeg sawv cev ntawm cov khoom noj hauv ntau thaj tsam (xws li Tuam Tshoj tus GB 2760). Kev ntsuam xyuas kev nyab xeeb xyoo 2024 los ntawm Lub Tsev Haujlwm Tshawb Fawb Txog Cov Khoom Siv Tshuaj Fragrance (RIFM) tau xaus lus tias cov ntaub ntawv uas twb muaj lawm txhawb nqa nws txoj kev siv tshuaj tsw qab.
Q: Yuav ua li cas Ethyl Valerate khaws cia thiab tuav?
A: Nws yog cov nplaim hluav taws kub thiab yuav tsum muab cia rau hauv qhov chaw txias, zoo - qhov cua qhov chaw deb ntawm qhov hluav taws kub thiab cov khoom siv tsis zoo xws li cov oxidizers muaj zog. Cov thawv ntim khoom yuav tsum tau kaw nruj nreem. Siv cov cuab yeej tiv thaiv tus kheej (PPE) xws li hnab looj tes thiab tsom iav kev nyab xeeb thaum tuav.
Q: Qhov txawv ntawm Ethyl Valerate thiab Ethyl Pentanoate yog dab tsi?
A: Lawv yog ob lub npe rau tib yam tshuaj lom neeg (CAS 539-82-2). "Valerate" los ntawm cov npe ntawm cov kua qaub (valeric acid), thaum "pentanoate" yog muab los ntawm nws lub npe IUPAC (pentanoic acid).
Tiv tauj peb
Txhawb nqa koj cov khoom formulations nrog peb txhim khu kev qha khoom ntawmEthyl Valerate (CAS 539-82-2). Peb muab:
- Zoo ib yam: Guaranteed siab purity (Ntau dua los yog sib npaug rau 98%) nrog batch-cov ntawv pov thawj tshwj xeeb ntawm Kev Ntsuam Xyuas (CoA).
- Flexible Sizing: Muaj los ntawm cov qauv kuaj mus rau cov khoom lag luam ntau.
- Kev them nyiaj yug tag nrho: Cov ntaub ntawv ua raws, suav nrog Cov Ntawv Pov Thawj Kev Nyab Xeeb (SDS) rau kev xa khoom thoob ntiaj teb.
Hu rau peb pawg neeg muag khoom hnub no kom thov tus qauv, sib tham txog koj cov kev xav tau tshwj xeeb ntawm daim ntawv thov, lossis tau txais cov lus sib tw rau koj qhov project.
Thov hu rau peb ntawmella.zhang@huilinbio-tech.com.
Cim npe nrov: ethyl valerate, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, ntshiab, ntuj, zoo, Tshuag, kev muag
